2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

High level of
taxation

81

73

67

64

60

45

45

42

43

40

Insolvency of
customer

81

65

62

55

48

38

32

27

24

43

High prices for
materials, structures and articles

53

45

50

47

45

36

37

42

46

32

Lack of orders

29

30

35

33

27

18

15

12

11

27

Competition from other construction firms

16

24

30

33

35

31

35

35

32

29

Lack of skilled
workers

14

20

22

23

28

24

25

26

30

16

Lack and depreciation of machines and equipment

19

19

14

14

13

7

6

7

5

3

High interest for
commercial credits

14

10

9

11

16

12

14

13

11

18